JP2630108B2 - Governor rope pulling device for elevator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for pulling up a governor rope for an elevator, and more particularly to an improvement in a device used for pulling up a governor rope in an operation test of a governor for an elevator.

[0002]

2. Description of the Related Art As a conventional apparatus for pulling up a governor rope for an elevator of this type, there is a technique described in Japanese Utility Model Laid-Open No. 63-123569. FIG. 5 is a perspective view of a conventional elevator governor rope pulling device. In the drawing, reference numeral 1a denotes a governor pulley, 1b denotes a governor base for rotatably supporting the governor pulley 1a, and 2 denotes a governor rope wound around the governor pulley 1a. Although not shown, the governor rope 2 is also wound around a governor weight pulley in a pit at the bottom of the hoistway, travels in synchronization with the elevation of the car, and drives the governor pulley 1a to rotate. Numeral 11 denotes holding members provided on both sides of the governor rope 2 for gripping and fixing the governor rope 2. Reference numeral 11a denotes a rope clip which is bolted to hold and fix the governor rope. 11b is integrally assembled with the rope clip 11a. And a screw-type jack member for pulling up the governor rope 2 on the opposite side of the car through the rope clip 11a.

[0003] The conventional elevator governor rope pulling device constructed as described above turns the screw 11c of the jack member 11b to lift the rope clip 11a integrally assembled with the jack member 11b, thereby raising the rope. The governor rope 2 gripped and fixed to the clip 11a is lifted off the governor pulley 1a and separated therefrom. As a result, the governor pulley 1a is disengaged from the governor rope 2 and can rotate independently, and the governor is subjected to an operation test.

[0004]

As described above, the conventional elevator governor rope pulling device is configured to pull up the governor rope 2 by turning the screw 11c of the jack member 11b. The governor rope 2 floats up by only one pitch of the screw 11c per rotation, and in order to lift the governor rope 2 completely from the governor pulley 1a and release its engagement, it is necessary to rotate a considerable number of screws 11c, It took a considerable amount of time to pull up the governor rope 2. Moreover, since the conventional elevator governor rope pulling device is configured to pull up one governor rope 2 with two screws 11c provided on the right and left sides thereof, the governor rope 2 is pulled by rotating each screw 11c equally to the left and right. It is necessary to raise, and the work is not easy. And, as the elevator stroke gets longer,
Since the weight of the governor rope 2 and the weight of the governor weight pulley increase, a great deal of effort is required to pull up the governor rope 2 from the governor pulley 1a, and the pulling time further increases.

Further, when pulling up the governor rope 2, it is necessary to change the diameter of the rope clip 11a in accordance with the change in the diameter of the governor rope 2. However, the conventional elevator governor rope pulling device grasps the governor rope 2. Since the fixed rope clip 11a and the jack member 11b using the screw 11c are integrally assembled,
It is necessary to prepare a lifting device of a type corresponding to the diameter of the governor rope 2, and there is room for improvement in cost. Also, a rope clip 1 for holding the governor rope 2
Since the jack 1a and the jack member 11b using the screw 11c are integrated, it is necessary to move and mount the entire lifting device as a single unit, which is inconvenient to handle, and in particular, a plurality of units are installed in parallel. When a governor operation test is performed in a high-speed elevator that is often used, preparation and clearing of the governor operation test are troublesome.

As another prior art, Japanese Utility Model Laid- Open No. 1-17
No. 6669, Japanese Patent Publication No. 63-2869
There is technology. Japanese Utility Model Laid-Open Publication No. 1-176669 discloses a
Hold the governor rope on the car side of the car on the nap pulley
In addition to arranging gripping means for fixing,
Hold the governor rope on the other side of the car
It discloses a technique in which a pulling means for pulling is arranged. I
Scarecrow, grasp the governor rope on the other side and pull up
Does the lifting means directly grip the governor rope?
The position where the governor rope is gripped is specified,
Sex was not good. Also, leverage is based on the principle of leverage.
The governor rope is lifted by the
In case of large vana rope and high-rise elevator
In some cases, the weight of the governor rope increases and the lever
It is necessary to lift the
The problem that turbulence could affect work safety
there were. Also, Japanese Patent Publication No. 63-2869 discloses floor frames.
A load device that applies a downward load to
A technique relating to verification of a weighing device of a elevator is disclosed.
However, this technology uses a hydraulic
This technology is used for elevator weighing
Although this technology can be used for
Used for pulling up governor rope for elevator
Can not.

Therefore, the present invention enables the governor rope to be pulled up safely, easily, and in a short time. Further, regardless of the diameter of the governor rope, the number of the governor ropes can be reduced and the preparation and clearing of the governor ropes can be reduced. It is an object of the present invention to provide an elevator governor rope pulling-up device capable of easily performing the following.

[0008]

According to the present invention, there is provided an elevator governor rope pulling-up device, in which a fixing holder for gripping and fixing the governor rope on the car side is arranged on the car side of the governor pulley, and on the opposite side of the governor pulley. Movable means comprising: a rope clip for gripping the governor rope on the opposite side of the car; and a hydraulic jack that is provided separately from the rope clip and that pushes the rope clip upward to pull up the governor rope. Is arranged.

[0009]

According to the present invention, the cage side of the governor rope is gripped and fixed at a fixed position by the holding member, and the opposite side of the governor rope is gripped by the rope clip of the movable means. Since the hydraulic jack is pulled upward, simple operation using only the hydraulic jack
The governor rope can be lifted off the governor pulley safely, easily, and in a short time, and separated, and the governor can be subjected to an operation test. In addition, since the rope clip of the movable means and the hydraulic jack are configured separately, the type of the rope clip may be changed or prepared according to the type of governor rope, and it is not necessary to increase the type of the entire apparatus. Therefore, the number of types of devices can be reduced, and the rope clip and the hydraulic jack can be separately handled, so that preparation and clearing in a governor operation test can be easily performed.

[0010]

Embodiments of the present invention will be described below. FIG. 1 is a front view schematically showing a hoistway to which an elevator governor rope lifting device according to one embodiment of the present invention is applied. FIG. 2 is a diagram illustrating an elevator governor rope lifting device according to one embodiment of the present invention attached to a governor. FIG. 3 is an enlarged rear view showing the operation of the movable member of the elevator governor rope lifting device according to one embodiment of the present invention. FIG. 4 is an enlarged rear view showing the operation of the elevator governor rope according to one embodiment of the present invention. It is an expansion perspective view of a movable member of a pulling device.

In the drawings, the same reference numerals and symbols as those of the conventional example indicate the same or corresponding parts as those of the conventional example, and therefore, duplicate description will be omitted here. In the figure, reference numeral 1 denotes a governor installed in a machine room located at an upper part of a hoistway, and a governor rope 2 is wound around a governor pulley 1a supported on a governor base 1b as in the related art. Reference numeral 3 denotes a governor weight pulley around which the governor rope 2 is wound while being installed in a pit at the bottom of the hoistway, 4 is a car, and 5 is a fastening member. One end of the governor rope 2 is attached to the governor weight pulley 3 from below. After being wound, it is connected to one end of the fastening member 5, and the other end of the governor rope 2 is wound around the governor pulley 1 a from above, and then connected to the other end of the fastening member 5.
That is, the governor rope 2 has a governor pulley 1a at its upper part.
And a lower part thereof is wound around the governor weight pulley 3, and both ends thereof are connected to the car 4 via a fastening device 5.

Further, in the elevator governor rope pulling device of the present embodiment, 6 is a rope clip capable of gripping the governor rope 2 on the opposite side of the car 4 without being displaced by tightening a bolt 6a, and 7 is the rope clip. together are separately formed by dividing a 6, a movable device located below the rope clip 6 is placed on the opposite side of the car 4 of the governor base 1b, 8 is for example connected to the movable device 7 Foot-operated hydraulic pump, 9 is governor stand 1b
This is a fixing holder which is placed on the car 4 side and holds the governor rope 2 on the car 4 side by holding the bolt 9a to hold it in a fixed position.

In the movable device 7 , reference numeral 7a denotes a hydraulic cylinder, and 7b denotes an adapter which is disposed at a lower rear portion of the hydraulic cylinder 7a and is connected to the hydraulic pump 8.
c is a support table mounted on the upper part of the hydraulic cylinder 7a, 7d is a support bar as a fall prevention mounted on the support table 7c at a position opposite to the hydraulic cylinder 7a via the governor rope 2, and 7e is Hydraulic cylinder 7
The plunger 7a is capable of protruding and retracting inside a.
e is a rope clip table which is fixed to the upper end of e and can place and support the rope clip 6 thereon. The movable device 7
The hydraulic jack and the hydraulic pump 8 constitute a hydraulic jack, and the hydraulic jack and the rope clip 6 constitute movable means for gripping and pulling the governor rope 2 on the side opposite to the car 4.

Next, a method of pulling up the governor rope using the elevator governor rope pulling device of the present embodiment configured as described above will be described. In order to pull up the governor rope 2 for the elevator, first, the governor stand 1 on the car 4 side
b, the fixing holder 9 is mounted on the governor rope 2 on the car 4 side of the governor rope 2 wound around the governor pulley 1a.
a, the governor rope 2 on the car 4 side is firmly grasped and held and fixed by the fixing holder 9, and its movement is prevented. Next, the rope clip 6 is attached to the upper part of the governor rope 2 opposite to the car 4 and the bolt 6a is tightened to firmly grip the governor rope 2, and the rope clip 6 is fixed to the governor rope 2 so as not to be displaced. Then, the movable device 7 is arranged below the rope clip 6 on the opposite side of the car 4 and mounted on the governor table 1b,
The rope clip 6 is placed and supported by the rope clip table 7f of the movable device 7. The hydraulic pump 8 is arranged near the movable device 7 and connected.

At this time, since the hydraulic pump 8 is connected to the hydraulic cylinder 7a of the movable device 7 via the adapter 7b, the hydraulic pump 8 is stepped on and the hydraulic oil is appropriately injected into the hydraulic cylinder 7a. By feeding the amount, the plunger 7e protrudes from the hydraulic cylinder 7a. With the protrusion of the plunger 7e, the rope clip base 7f fixed to the upper end of the plunger 7e pushes up the rope clip 6 holding the governor rope 2, lifts up the governor rope 2 from a groove (not shown) of the governor pulley 1a, and separates. Then, the engagement between the governor rope 2 and the governor pulley 1a is released. As a result, the governor pulley 1a becomes freely rotatable independently, and the governor 1 is subjected to an operation test.

At this time, the total weight of the governor rope 2 and the governor weight pulley 3, which increase in weight as the ascending and descending stroke becomes longer, is applied to the rope clip 6 for gripping the governor rope 2, and the rope clip 6 and the hydraulic cylinder 7a are connected to each other. The movable device 7 supporting the rope clip 6 tends to fall toward the governor rope 2 with the lower end of the hydraulic cylinder 7a as a fulcrum. However, on the support 7c above the hydraulic cylinder 7a, the governor rope 2
On the opposite side of a position between the hydraulic cylinder 7a through the mounted support bar 7d as falling stop, movable instrumentation
The movable device 7 does not fall down to the governor rope 2 side and does not hinder the lifting operation of the governor rope 2 because the movable device 7 functions as a fall prevention for preventing the tilting of the device 7 toward the governor rope 2 side.

As described above, in the elevator governor rope pulling device of the above embodiment, the fixing holder is arranged on the car 4 side of the governor pulley 1a, and the governor rope 2 on the car 4 side is gripped and fixed. On the opposite side of basket 4
A hydraulic jack comprising a movable device 7 and a hydraulic pump 8 is arranged, and the governor rope 2 on the opposite side of the car 4 is provided.
Is gripped by a rope clip 6 formed separately from the hydraulic jack, a hydraulic pump 8 of the hydraulic jack is operated, and the movable device 7 presses the rope clip 6 upward, so that the governor rope 2 is moved. It is designed to be pulled up.

Therefore, in the above-described embodiment, the cage 4 side of the governor rope 2 is held and fixed at a fixed position by the holding fixture 9, and the rope clip 6 grips the opposite side of the governor rope 2 from the cage 4. In addition, since the movable device 7 pushes up the rope clip 6 and pulls up the governor rope 2, the governor rope 2 can be lifted from the governor pulley 1a safely, easily, and in a short time with a simple operation of stepping on the hydraulic pump 8. The governor 1 can be subjected to an operation test. Further, a rope clip 6 of a movable means, a movable device 7 of a hydraulic jack, and a hydraulic pump 8
Is divided, the type of the governor rope 2 only needs to be changed and prepared for the rope clip 6 in accordance with the type of the governor rope 2, and it is not necessary to increase the type of the entire lifting device. Since the number of types can be reduced and the rope clip 6 and the hydraulic jack can be handled separately, preparation and clearing of the governor 1 in an operation test can be easily performed.

In the meantime, in the movable means of the above embodiment, the rope clip 6, the movable device 7 constituting the hydraulic jack, and the hydraulic pump 8 are divided and formed separately. However, the present invention is not limited to this, and any device may be used as long as it functions as a movable unit that grips the governor rope 2 and pulls up by operating the hydraulic jack. For example, the rope clip 6 can be integrally attached to the movable device 7, and in this case, the pulling up of the governor rope 2 can be performed safely, easily, and in a short time by a simple operation using only the hydraulic jack. it can. However, when the rope clip 6 and the hydraulic jack are divided and implemented, an effect is obtained that the handling of the entire apparatus becomes easy.

Although the hydraulic jack of the above embodiment is constituted by the movable device 7 and the foot-operated hydraulic pump 8, the present invention is not limited to this. As long as the governor rope 2 can be pulled up, it is possible to change the hydraulic pump 8 to an electric type, for example.

[0021]

As described above, in the elevator governor rope pulling device according to the present invention, the fixing holder for gripping and fixing the governor rope on the car side is disposed on the car side of the governor pulley. A rope clip that grips the governor rope on the opposite side of the car from the governor pulley, and a hydraulic pressure that is disposed separately from the rope clip, and that presses the rope clip upward to pull up the governor rope. Since the movable means with the jack is arranged, the cage side of the governor rope is gripped and fixed at a fixed position by the fixing holder, and the rope clip of the movable means grips the opposite side of the governor rope and the cage. And the hydraulic jack of the movable means is pulled upward, so that the governor rope can be governed by simple operation using only the hydraulic jack. Safe from over Li, easily, and is disengaged by lifted in a short time, can be subjected to operation test governor. In addition, since the rope clip of the movable means and the hydraulic jack are configured separately, the type of the rope clip may be changed or prepared according to the type of governor rope, and it is not necessary to increase the type of the entire apparatus. Therefore, the number of types of devices can be reduced, and the rope clip and the hydraulic jack can be separately handled, so that preparation and clearing in a governor operation test can be easily performed.

[Brief description of the drawings]

FIG. 1 is a front view schematically showing a hoistway to which an elevator governor rope pulling device according to an embodiment of the present invention is applied.

FIG. 2 is an enlarged rear view showing a state where the elevator governor rope pulling device according to one embodiment of the present invention is attached to a governor.

FIG. 3 is an enlarged rear view showing the operation of the movable device of the elevator governor rope pulling-up device according to one embodiment of the present invention.

FIG. 4 is an enlarged perspective view of a movable device of the elevator governor rope pulling device according to one embodiment of the present invention.

FIG. 5 is a perspective view of a conventional elevator governor rope pulling-up device.

[Explanation of symbols]

 1a Governor pulley 2 Governor rope 4 Basket 6 Rope clip 7 Movable device (hydraulic jack) 8 Hydraulic pump (hydraulic jack) 9 Fixed holder

Claims (1)

(57) [Claims] 1. A fixing holder which is arranged on a car side of a governor pulley and grips and fixes a governor rope on a car side, a rope clip which is arranged on a side opposite to a car of the governor pulley and grips a governor rope on an opposite side of the car, and the rope A lift device for a governor rope for an elevator, comprising: a movable means provided separately from the clip and having a hydraulic jack for pressing the rope clip upward to pull up the governor rope.